<!DOCTYPE html>
<html xmlns:th="http://www.thymeleaf.org">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
     <table border="1" align="center" width="80%">
          <tr>
              <th>编号</th>
              <th>名称</th>
              <th>操作</th>
          </tr>

         <tr align="center" th:each="d:${list}">
         <td th:text="${d.depId}">
             1
         </td>

         <td th:text="${d.depName}">
             国防部
         </td>

         <td>
             <button th:onclick="'del('+${d.depId}+')'">删除</button>
         </td>
         </tr>
     </table>
</body>
</html>

<script>
    function  del(id) {
        alert(id);
    }
</script>